The palette used for this was generated using an online tool that blends two colors together and shows the various mid-point colors between them. I set it for there to be ten midpoints and used the middle seven where the color seemed to blend the best
The first color was as close as I could figure to red haze in the normal parts of the Nether
The second color was a light blue/whitish-blue similar to the fog that can be in some of the newer biomes
The question I had was whether it possible to create a ghast that blended in with the environment and would be difficult to spot with the naked eye
I then created a design that would allow the seven colors to be repeated over and over again
I haven't tested in out for myself yet, so I have no idea if it actually works
It's 7:49 am here and I haven't gone to bed yet (I'm a night owl)
I'm going to go do that now
:)